package summer_vacation.xuqianlan;

/**
 * Created by lenovo on 2015/9/6.
 */
public class Test_33 {
    public static void main(String[] args) {
        int l=0;
        l=1020/2+2;
        int i=0;
        for(i=1;l>=0;i++){
            l=l-(l/2+2);
        }
        System.out.println(+i);

    }
}
